How to best record monthly sales?

Hello there, Torbeck.

You'll want to manually track all the daily sales and record them all in bulk after a month.

To do this, you may consider creating a bundle from the Products & Services list and add all of the items that you want to show up in the Sales Receipt.

Here's how to create a bundle:

1. Go to the Gear.
2. Under Lists, choose Products and Services.
3. Click the New button and select Bundle.
   
4. Add the Daily Sales Items to the bundle.
5. Click Save and close.

When you're ready to record your monthly sales, create a sales receipt and add the bundle items. Then, you're good to go.

1. Go to the +New icon.
2. Choose Sales Receipt.
3. Fill in the necessary information and make sure to add the bundle item.
4. Click Save and close. 
   

You might want to go over this guide for instructions and insights on how to record daily sales in QuickBooks Online: Record your total daily sales.

Also, regarding your question if daily sales can be reconciled, the answer is yes. I've attached a sample screenshot for your visual guide.

You might also want to check out this article to assist with the reconcile process: Learn the reconcile workflow in QuickBooks. 

Get back to me if you have other concerns. I'll be around to answer them all for you. Keep safe and have a good one!